Submarine question

Posted: 9/11/2005 10:09:00 AM EDT

Picked up The Director's Cut of DAS BOOT at Walmart yesterday for $7.50. Haven't seen the movie in years.

Question is; Do modern subs groan and squeak as bad as the old subs of WWll age when they submerge? It's the nature of the beast of course, as it's the water pressure increasing on the boat's hull. But one would think that more modern, technologically advanced subs would stand up to the increased pressures better.

I'm sure they do, but to a lesser degree, maybe?

Posted: 9/11/2005 10:37:10 AM EDT

[#1]

no

experience- 4 years 688i

Posted: 9/11/2005 10:44:02 AM EDT

[#2]

Quoted:
no

experience- 4 years 688i

Cause of the circular pressure hull?

Posted: 9/11/2005 10:50:20 AM EDT

[#3]

From my experience as a former U.S. submarine sailor, no they don't creak or groan. Great measures are gone thru to make the submarines as quite as possible. Everything is mounted on sound isolation mounts (usually rubber) from machinery to the actual decks that we walked on.

Posted: 9/11/2005 10:52:08 AM EDT

[#4]

But they still will get compressed as they dive deep. The round hulls and double hulls make them much stronger and durable.

Posted: 9/11/2005 10:54:12 AM EDT

[#5]

FUCK YOU, GOD! NOTHING gets through HY-80!

-Blind Man's Bluff

Posted: 9/11/2005 10:58:01 AM EDT

[#6]

Quoted:
FUCK YOU, GOD! NOTHING gets through HY-80!

-Blind Man's Bluff

Excellent book...a must read if you already haven't

Posted: 9/11/2005 1:55:26 PM EDT

[#7]

Quoted:
NOTHING gets through HY-80!

-Blind Man's Bluff

or HY-100 on ice boats

Posted: 9/11/2005 2:00:33 PM EDT

[#8]

As one submarine Captain said, "The only way to look for a US Navy sub is to look for a completely quiet hole in the water."

Posted: 9/11/2005 2:09:59 PM EDT

[#9]

Don't mean to hijack, but this seemed an appropriate place:

When the forward room of the submarine was flooding in the film Ice Station Zebra, the crew opened these air vents in the first two compartments and said they were "bleeding air." What was that about?

Posted: 9/11/2005 2:17:29 PM EDT

[#10]

An old friend of mine was in the Subs at Subic Bay P.I. told me that Submarines was the true
Navy, all the rest were just targets

Posted: 9/12/2005 7:28:47 AM EDT

[#11]

Quoted:
Don't mean to hijack, but this seemed an appropriate place:

When the forward room of the submarine was flooding in the film Ice Station Zebra, the crew opened these air vents in the first two compartments and said they were "bleeding air." What was that about?

Did not see the movie, but it sounds like they were bleeding air into the forward ballast tanks. They are open to the water at the bottom, and bleeding air into them will force water out equalizing our flooding.

US Subs seem to have a pretty large safety margin for flooding. It was surprising to see, in drawings, how much water could be in the people tank and still be able to stay afloat. I would love to say more, but I don't want NIS to come knocking.

Posted: 9/12/2005 7:35:26 AM EDT

[#12]

They pop and crack some when changing depth.

3yrs on 637 class.

Posted: 9/12/2005 8:28:26 PM EDT

[#13]

Quoted:
Quoted:
Don't mean to hijack, but this seemed an appropriate place:

When the forward room of the submarine was flooding in the film Ice Station Zebra, the crew opened these air vents in the first two compartments and said they were "bleeding air." What was that about?

Did not see the movie, but it sounds like they were bleeding air into the forward ballast tanks. They are open to the water at the bottom, and bleeding air into them will force water out equalizing our flooding.

US Subs seem to have a pretty large safety margin for flooding. It was surprising to see, in drawings, how much water could be in the people tank and still be able to stay afloat. I would love to say more, but I don't want NIS to come knocking.

Actually in the film it appeared that they were forcing air into the two forward crew spaces after one of the torpedo tubes was opened to sea. (The tube door controls were sabotaged.) At first I thought they were trying to minimalize the flooding by equalizing the pressure, but after the door was closed, they continued to "bleed air."

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